- State
- IL
- Covered entity type
- Healthcare Provider
- Individuals affected
- 597
- Business associate present
- No
- Type of breach
- Hacking/IT Incident
- Location of breached information
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), Montrose Behavioral Health Hospital, reported that an employee was the subject of an email phishing scheme affecting the protected health information (PHI) of 597 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, health insurance information, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative and technical safeguards. Staff were retrained on email security precautions.
Change history
- 9/23/2026Added to OCR's archive list
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.